Energy storage power source



FIG. 1 is a front, left and bottom perspective view of an energy storage power source showing my design.

FIG. 2 is a rear, right and top perspective view of an energy storage power source showing my design.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a left-side elevation view thereof.

FIG. 6 is a right-side elevation view thereof.

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines shown represent the portions of the energy storage power source that forms no part of the claimed design. 

CLAIM The ornamental design for an energy storage power source, as shown and described. 